Benjamin n



y (Hemden.)

B. N. FREEMAN .8v S. E. WHITEHEAD.

NUT LOCK.

N0.350;53s. Patentedoct. 12,1886.

UNITED STATES.

PATENT OFFICE.

BENJAMIN N. FREEMAN AND STANLEY E. VHITEHEAD, OF ST. LOUIS, MO.

NUT-LOCK.

erEcIrIcATIoN forming part of Letters Patent No. ascesa-dated october12, 1886.

Application filed March 1, 1886. Serial No. 193.661. (No model.)

provement in Nut-Locks, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this specification, and in Figure 1 is a perspectiveview of the device, including the nut and end of the bolt. Fig. 2 is aperspective View of the shell alone. Figs. 3, 4, and 5 are perspectiveviews of modifications.

The essential feature is a tongue secured to the nut and engaging thehead of the bolt, substantially as set forth.

A is the bolt. This, in Fig. 1, is shown with two diametric channels-orgrooves, a, intersecting at right angles.

B is the nut, in which there is no novel feature.

C is a shell or washer or lock-piece, fitted to be secured to the nutand carrying a tongue, C', which is to be bent down upon the end of thebolt to prevent the nut turning thereon. In Figs. 1, 2, and 3 the shellis shown with holes c `c for the passage of the bolt, with part c'covering the' end of the nut, part c2 cover.

li s c2 has an extension c3 carried beneath the nut. Fig. 5 is similarto Figs. 2 and 8, with the part or parts c3 removed.

XVe have shown the end of the bolt (see Fig. 1) with two grooves, a, butit will be understood that a single groove would be sufiicient toreceive the tongue, although itwould not give as perfect means ofadjustment.

In the use of the lock as shown in Figs. 1, 2, 3, or 4 the shell Gisplaced upon the nut before it is applied to the bolt, while in the fornishown in Fig. 5 the shell may be applied to the nut after it has beenscrewed on the bolt. ln all cases, when the nut has been screwed home,the tongue C is bent down over the end of the bolt andengagedvtherewith.

We have shown a number of ways of securing the tongue C to the nut B sothat it will turn therewith, if at all, but do not confine ourselves tothese devices -for securing the tongue to the nut. f

What we claim as our invention is-n 1. ln a nut-]ock, thev combination,with a shell surrounding the nut, and having an opening at top andbottom 'for the passage of the bolt, of a tongue formed. on said shellat the edge of said top opening, and a groove in the end of the bolt,adapted to receive said tongue when bent down therein, substantially asand for the purpose set forth.

2. As a new article of manufacture, a nutlock consisting of a shell forembracing the nut, having a perforation through its top for the passageof the bolt, and a tongue projecting from the Inargiu of saidperforation and adapted to be bent over the end of the bolt,

.substantially as set forth,

BENJ. N. FREEMAN. STANLEY E. VHITEHEAD.

Vitnesses:

SAME. KNIGHT, GEO. H. KNIGHT.

